- All sections
- G - Physics
- G02B - Optical elements, systems or apparatus
- G02B 13/04 - Reversed telephoto objectives
Patent holdings for IPC class G02B 13/04
Total number of patents in this class: 1168
10-year publication summary
|
118
|
128
|
114
|
164
|
89
|
54
|
42
|
33
|
32
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Olympus Corporation | 13275 |
160 |
| FUJIFILM Corporation | 28805 |
158 |
| Largan Precision Co., Ltd. | 1485 |
77 |
| Nikon Corporation | 7123 |
54 |
| Canon Inc. | 38148 |
39 |
| Panasonic Intellectual Property Management Co., Ltd. | 29733 |
33 |
| Samsung Electro-mechanics Co., Ltd. | 5206 |
28 |
| Ricoh Company, Ltd. | 13216 |
27 |
| Konica Minolta, Inc. | 8535 |
25 |
| Tokyo Visionary Optics Co., Ltd. | 425 |
24 |
| Olympus Medical Systems Corp. | 1774 |
22 |
| Maxell, Ltd. | 2659 |
22 |
| Nidec Sankyo Corporation | 1093 |
21 |
| Sony Corporation | 31541 |
20 |
| Genius Electronic Optical Co., Ltd. | 177 |
17 |
| Zhejiang Sunny Optics Co., Ltd. | 354 |
15 |
| Tianjin Ofilm Opto Electronics Co., Ltd. | 102 |
15 |
| Jiangxi Ofilm Optical Co., Ltd. | 85 |
15 |
| Corephotonics Ltd. | 365 |
14 |
| Konica Minolta Opto, Inc. | 1133 |
13 |
| Other owners | 369 |